My acer aspire one start to turn on but few seconds after windows starts to load shut down

This is generally a hardware issue - if the computer is under warranty get it fixed through Acer. If not you may need professional help. You don't mention how old the laptop is but if it is older than a year or two and you live in a dusty environment it could be overheating. If the fan is not running or always running on super-high then it is probably overheating.

Another thing to try is using a boot CD (any boot CD will work) and see if the computer still shuts down after that 30 seconds. If yes, definitely hardware. If not, possible that it's a windows issue.

Hope that helps!

Dave

I suggest to reinstall the OS. During the installation process, format the existing system drive/partition/volume and install the OS again. This will fix any software problems or corrupt files. If there are hardware issues, you'l know that when you reboot the machine to log into your account.

Pull the plug from the AC outlet, wait a 30 seconds, plug in, try to reboot. Does it try to start and in a few seconds shut down? Give as much detail as you can.

read this -> http://dr-notebook.blogspot.com/2012/02/acer-as-4551-no-display-jalan.html

The problem is because your software might have accidentally deleted system files... You can repair your windows using your setup windows disk....(Recommended) OR try starting your laptop in safe mode and try restoring........

http://www.pchell.com/hardware/beepcodes.shtml
check this codes.
Try to start with 1 memory modul at times.

First thing I'd check is for a BIOS update for your computer under the Acer support pages (acer.com). In some cases, thermal control updates are included in newer version of the BIOS, if it is a manufacturing problem.
Goto http://www.cpuid.com/hwmonitor.php and download Hardware Monitor, start the computer and immediately run the hardware monitor app to check how high the temperature on the CPU gets before it shuts down.
Continuing use under this condition may damage your Windows installation because of the sudden shutdown.

try system recovery.or try recovering windows through a Rescue disk.

I had the same problem, I went to the keyboard and shut down the beep there is a check mark next to it and take the check mark off, the beep will stop

usb not detect